Table V.
Intraclass correlation coefficient and 95% confidence intervals for the manual reader vs HIPPO agreement analyses, excluding HIPPO measurements generated from a single outlying patient.
| Variable | Reader 1 vs HIPPO ICC (95% CI) | Reader 2 vs HIPPO ICC (95% CI) | Reader 3 vs HIPPO ICC (95% CI) | |||
|---|---|---|---|---|---|---|
| Left hip | Right hip | Left hip | Right hip | Left hip | Right hip | |
| LCEA | 0.85 (0.78 to 0.89) | 0.84 (0.78 to 0.88) | 0.86 (0.81 to 0.90) | 0.78 (0.64 to 0.86) | 0.75 (0.61 to 0.83) | 0.71 (0.57 to 0.81) |
| Tönnis angle | 0.82 (0.69 to 0.89) | 0.82 (0.38 to 0.92)* | 0.83 (0.72 to 0.90) | 0.87 (0.81 to 0.91) | 0.84 (0.78 to 0.88) | 0.90 (0.86 to 0.93) |
| Sharp’s angle | 0.86 (0.81 to 0.90) | 0.83 (0.77 to 0.88) | 0.80 (0.60 to 0.89) | 0.81 (0.73 to 0.86) | 0.80 (0.57 to 0.89) | 0.74 (0.63 to 0.82) |
| CCD angle | 0.73 (0.06 to 0.90)* | 0.75 (0.62 to 0.84) | 0.79 (0.60 to 0.88) | 0.72 (0.38 to 0.86)* | 0.65 (0.54 to 0.74) | 0.62 (0.50 to 0.72) |
| Femoral head coverage | 0.73 (0.07 to 0.90)* | 0.68 (0.00 to 0.88)* | 0.67 (0.00 to 0.88)* | 0.64 (0.00 to 0.88)* | 0.61 (0.00 to 0.85)* | 0.5 (0.00 to 0.79)* |
| Pelvic obliquity | 0.83 (0.59 to 0.91) | 0.95 (0.93 to 0.96) | 0.98 (0.97 to 0.98) | |||
*
Wide confidence intervals were observed.
CCD, caput-collum-diaphyseal; CI, confidence interval; ICC, intraclass correlation coefficient; LCEA, lateral centre-edge angle.